Subtract 7/98 from 21/8
1st number: 2 5/8, 2nd number: 7/98
21/8 - 7/98 is 143/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 98 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 8 × 49 = 392,
21/8 = 21 × 49/8 × 49 = 1029/392 - Likewise, for the 2nd fraction, since 98 × 4 = 392,
7/98 = 7 × 4/98 × 4 = 28/392 - Subtract the two like fractions:
1029/392 - 28/392 = 1029 - 28/392 = 1001/392 - After reducing the fraction, the answer is 143/56
- In mixed form: 231/56
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